Physics-
General
Easy
Question
The time taken by a block of wood (initially at rest) to slide down a smooth inclined plane 9.8 m long (angle of inclination is 30null) is :
- 1/2 sec
- 2 sec
- 4 sec
- 1 sec
The correct answer is: 2 sec
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Physics-General
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A stone is dropped from a certain height which can reach the ground in 5 second. If the stone is stopped after 3 second of its fall and then allowed to fall again, then the time taken by the stone to reach the ground for the remaining distance is :
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A stone falls from a balloon that is descending at a uniform rate of 12 m/s. The displacement of the stone from the point of release after 10 sec is :
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The engine of a motorcycle can produce a maximum acceleration 5 m/s2 Its brakes can produce a maximum retardation 10 m/s2 What is the minimum time in which it can cover a distance of 1.5 km:
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Physics-General
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The complexing ability of Mn+2, Fe+2, Co+2 is
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Chemistry-General
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Which of the following gains electrons more easily
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Chemistry-General
Chemistry-
It is found that V forms double salt isomorphous with Mohr’s salt. The oxidation number of V in this compound is:
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Chemistry-General
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Coulomb force between a proton and electron separated by a distance of 
m is...
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Least value of electric charge available is........
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The heat engines A and B have their sources at 327°C and 227°C and sinks at 127°C and 27°C The ratio of their efficiency is....
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Physics-General
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Physics-General
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Two blocks shown in the figure are connected by a heavy uniform rope of mass 4 kg. An upward force of 200 N is applied as shown. Find the acceleration of the system.
Two blocks shown in the figure are connected by a heavy uniform rope of mass 4 kg. An upward force of 200 N is applied as shown. Find the acceleration of the system.
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A uniform rope of length 5 m is on a smooth horizontal surface. It is being pulled by a horizontal force 20 N at one end. The ratio of tension at a distance of 2m from force end to tension at a distance of 2m from force free end is
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Physics-General
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Two blocks of masses 1kg and 2kg are connected by a string AB of mass ‘1kg’. The blocks are placed on a smooth horizontal surface. Block of mass 1kg is pulled by a horizontal force F of magnitude 8N. Find the tension in the string at points A and B.
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Physics-General
